Molecular and morphological phylogeny of hooded shrimps, genera Betaeus and Betaeopsis (Decapoda, Alpheidae): testing the center of origin biogeographic model and evolution of life history traits

Molecular Phylogenetics and Evolution
Arthur Anker, J Antonio Baeza

Abstract

The phylogenetic relationships of the alpheid shrimp genera Betaeus (Dana, 1852) (15 species) and Betaeopsis (Yaldwyn, 1971) (three species), collectively known as hooded shrimps, are analyzed with morphological, molecular (16S and H3) and combined "total evidence" (morphology+DNA) datasets. The tree topology resulting from morphological and combined analyses places Betaeus jucundus as sister to all the remaining species of Betaeus and Betaeopsis, rendering Betaeus paraphyletic. On the other hand, Betaeopsis is recovered as monophyletic. Betaeus australis is positioned as sister to the remaining species of Betaeus s. str. (excluding B. jucundus), which is composed of three well-supported and resolved clades. Mapping of biogeographic traits on the combined tree suggests at least two possible historic scenarios. In the first scenario, the North-East Pacific harboring the highest diversity of hooded shrimps (seven species of Betaeus), acted as the "center of origin", where species appeared, matured and eventually migrated toward peripheral regions. In the second scenario, Betaeus+Betaeopsis originated in the southern Indo-West Pacific and subsequently colonized the North-East Pacific, where a major radiation involving dispersal/vi...Continue Reading

References

Jan 27, 1999·Bioinformatics·D Posada, K A Crandall
Aug 11, 2000·Evolution; International Journal of Organic Evolution·J E DuffyR Ríos
Aug 29, 2001·Bioinformatics·J P Huelsenbeck, F Ronquist
Mar 12, 2004·Molecular Phylogenetics and Evolution·Cheryl L MorrisonJ Emmett Duffy
Mar 23, 2004·Nucleic Acids Research·Robert C Edgar
Feb 1, 2007·Evolution; International Journal of Organic Evolution·Arthur AnkerA Richard Palmer

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